Home / 12,109,304,847.30-18,163,957,270.95-11,905,231,503.30

Finding the Fourth Proportional to 12,109,304,847.30, 18,163,957,270.95 and 11,905,231,503.30

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Solution

The fourth proportional to 12,109,304,847.30, 18,163,957,270.95 and 11,905,231,503.30 is: 17,857,847,254.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,304,847.30 : 18,163,957,270.95 = 11,905,231,503.30 : x
  2. Step 2: Convert to fraction form
    12,109,304,847.30/18,163,957,270.95 = 11,905,231,503.30/x
  3. Step 3: Cross multiply
    12,109,304,847.30x = 18,163,957,270.95 × 11,905,231,503.30
  4. Step 4: Simplify right side
    12,109,304,847.30x = 216,246,116,326,709,035,008
  5. Step 5: Solve for x
    x = 216,246,116,326,709,035,008/12,109,304,847.30
  6. Step 6: Final answer
    x = 17,857,847,254.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.